84
Programme unit
5370
Door lock controller
A31
Motor con-
troller U1
Level
guard B2
Heater
elements
Voltage
supply
K21
M1
Door lock
A41
Programme unit
A1
Transformer
T10
Communication card
A21
Water
valves
Drain
valves
Temp.
Level guard
Emergency
stop
I/O card 1
A11
I/O card 2
A12
Display card
Card reader
Control panel
Communication card A22
2
• I/OcardsA11andA12
Most smaller machines have only one card: A11. On some machines,
there is a greater need for outputs, in which case two I/O cards are
used.
The I/O cards are controlled by the CPU card via a serial interface. The
I/O cards feature outputs, which, via the communication cards in the
rear electric box, control various machine functions, such as the wa-
ter valves, heater connection and drain valve. On the input connection
blocks of the communication cards, it is possible to connect signals for
control of e.g. the detergent supply.
The cards also have inputs for emergency stop and door lock ACK.